runs better with 02's unplugged ? - Ford Mustang Forums : Corral.net Mustang Forum
 
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post #1 of 7 Old 07-28-2008, 09:51 PM Thread Starter
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runs better with 02's unplugged ?

well i have had a stumble off idle for a while and car just felt sluggish so unplugged my 02 harness and man my car feels better while driving but it loads up idleing because the o2s cant control the fuel mixture at idle. i think i have a bad o2 or one is wired up wrong because i have 1 universal 02 because my harness was melted before ! any thoughts......


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post #2 of 7 Old 07-29-2008, 01:24 AM
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Your fuel mileage will be horrible, but your W.O.T performance will be the same. Might have some small driveability issues also.


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post #3 of 7 Old 07-29-2008, 10:13 AM Thread Starter
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it actually drives better ! but yeah its rich, i'm going to check the 02 sensors !

93 hatch midnight blue 2710lbs 2890 with me
302 flipped stock trw's ,typhoon intake,70mm tb,gt40pheads,crane beehives,bbk lt,x-pipe,1chambers,safc,24lb inj,255 pump,76mm C&L,f-cam,4.30,t-5,king cobra clutch
best 1/4 time: 12.68 best 1/4 mph: 108.18
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post #4 of 7 Old 07-29-2008, 04:20 PM
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Yea I have them unplugged on both my cars the mileage sucks anyway and the race gas eats em up.

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post #5 of 7 Old 07-30-2008, 02:26 PM
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usually when u unplug a sensor and things get better it means there bad and the computer has relearned to run with out proper function
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post #6 of 7 Old 07-30-2008, 03:41 PM
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Originally Posted by RamAir02TA7777 View Post
Yea I have them unplugged on both my cars the mileage sucks anyway and the race gas eats em up.
Do they get contaminated only when plugged in? I always thought that they would get fouled by race gas even when they weren't working.

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post #7 of 7 Old 07-30-2008, 08:13 PM
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Im sure the race gas continues to damage the sensor part but without them plugged in the computer sees an error and trys to compensate or whatever. Once they get messed up there done for atleast as far as I know.

2002 Trans Am WS6 cam headers 4l80e 3600stall 160rwhp shot (10.68 @ 128)
2010 GT500
1988 Mustang ls 4.8 224 cam valve springs 20 psi th400
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